In situ x-ray diffraction was used to optimize the synthesis of Aurivillius structure ceramic powders. Powders were prepared via conventional solid-state synthesis and the Pechini polymer precursor method. The phases Bi4Ti3O12, and Bi2Sr2Nb2TiO12 were studied. The Bi4Ti3O12 phase formed easily, regardless of processing route, between 400-500C and phase purity was achieved by 700C when using the...

in this work the synthesization process of nanocrstallite nd:ktp powders by modified pechini methodwas studied. the results of xrd studies indicate that ktp nanocrystallites doped by nd has orthorhombicphase. the structural and lattice modes of the synthesized nanocrystallite products were investigated byusing micro raman back scattering and ft-ir transmission spectroscopies. sem imaging techni...

YVO4:Eu ,Bi phosphors have been prepared by the high-temperature solid-state (HT) method and the Pechini-type sol–gel (SG) method. Spherical SiO2 particles have been further coated with YVO4:Eu ,Bi phosphor layers by the Pechini-type SG process, and it leads to the formation of core–shell structured SiO2/YVO4:Eu ,Bi phosphors. Therefore, the phase formations, structures, morphologies, and photo...

Thin films of lithium niobate were deposited on (100) silicon by the polymeric precursor method (Pechini method). Annealing in static air was performed at 500 jC for 3 h. The films obtained were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Electrical characterization of the films pointed to ferroelectricity via hysteresis loop. The diele...

The aim of this study represents the synthesis, characterization and photocatalytic activity determination of ZnO nanopowders synthesized using modified Pechini method. The obtained powders were characterized in what concerns their composition using X-ray diffraction, morphology using scanning electron microscopy and transmission electron microscopy and in what concerns the photocatalytic activ...